St Mary's College vs Youthinc. Enterprise Academy
A head-to-head comparison of two schools in South Australia, 820 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
St Mary's College
Adelaide · Catholic combined · R-12
659 students · ICSEA 1073
Youthinc. Enterprise Academy
Adelaide · Independent special · 11-12
129 students · ICSEA 1029
| Measure | St Mary's College Adelaide SA | Youthinc. Enterprise Academy Adelaide SA |
|---|---|---|
| Success Index | 56 Top 50% | – Not rated |
| State rank (type) | #39 of 145 | – |
| National rank (type) | #524 of 1,259 | – |
| Sector | Catholic | Independent |
| Type | Combined | Special |
| Year range | R-12 | 11-12 |
| Students | 659 | 129 |
| Girls / boys | 659 / 0 | 69 / 60 |
| Foundation intake | 13 | – |
| Year 7 cohort | 79 | – |
| Year 12 cohort | 100 | 72 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -22% | +42% |
| ICSEA Average 1000 | 1073 | 1029 |
| ICSEA percentile | 76th | 59th |
| Top SEA quarter | 26% | 23% |
| Bottom SEA quarter | 10% | 27% |
| Students per teacher | 10.8 | 19.0 |
| Teaching staff (FTE) | 60.9 | 6.8 |
| Non-teaching staff (FTE) | 32.1 | 17.2 |
| Language background other than English | 15% | 2% |
| Indigenous students | 1% | 5% |
| Suburb | Adelaide 5000 | Adelaide 5000 |
| Council area | Adelaide | Adelaide |
| Remoteness | Major Cities | Major Cities |
| Website | www.stmarys.sa.edu.au | www.youthinc.org.au/ |
The verdict
- •St Mary's College has the higher ICSEA (1073 vs 1029), indicating a more advantaged community.
- •St Mary's College has fewer students per teacher (10.8 vs 19.0).
- •St Mary's College is the larger school with 659 students compared with 129.
- •Youthinc. Enterprise Academy has grown faster over five years (42% vs -22%).
- •St Mary's College is a catholic school while Youthinc. Enterprise Academy is an independent school, so fees and enrolment rules differ.
The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Your nearest centre: Success Tutoring Windsor Gardens
Frequently asked questions
Is St Mary's College better than Youthinc. Enterprise Academy?
The two schools are very close on the Success Index. Differences in sector, size, year range and distance from home will matter more than the score.
How far apart are St Mary's College and Youthinc. Enterprise Academy?
About 820 m in a straight line, between Adelaide and Adelaide in South Australia.
Which has the better student-to-teacher ratio?
St Mary's College has 10.8 students per full-time-equivalent teacher and Youthinc. Enterprise Academy has 19.0.
How do St Mary's College and Youthinc. Enterprise Academy rank in SA?
St Mary's College is 39th of 145 and Youthinc. Enterprise Academy is unranked among combined schools in South Australia on the 2025 Success Index.